Nasstoys' Power Sleeve's box says the unit "strokes your cock like a warm, vibrating mouth" - and we can't disagree. Though the moving, vibrating inner sheath will probably be a little large for some users, the Power Sleeve certainly performs as advertised. Just lube up, stick your cock in the tube, then use the dual-slider power control to regulate both the amount of vibration and the rapidity of the stroke. Don't worry; you'll get off quickly with this handy gadget. Available from Nasswalk.